23605940653 has 2 divisors, whose sum is σ = 23605940654. Its totient is φ = 23605940652.

The previous prime is 23605940599. The next prime is 23605940663. The reversal of 23605940653 is 35604950632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15240643209 + 8365297444 = 123453^2 + 91462^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23605940653 is a prime.

It is a super-2 number, since 2×23605940653² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23605940663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11802970326 + 11802970327.

It is an arithmetic number, because the mean of its divisors is an integer number (11802970327).

Almost surely, 2^23605940653 is an apocalyptic number.

It is an amenable number.

23605940653 is a deficient number, since it is larger than the sum of its proper divisors (1).

23605940653 is an equidigital number, since it uses as much as digits as its factorization.

23605940653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 583200, while the sum is 43.

The spelling of 23605940653 in words is "twenty-three billion, six hundred five million, nine hundred forty thousand, six hundred fifty-three".